It's my first time using OPK's so I'm probably going to sound stupid cos I have no idea! I have been testing around 1pm and 6pm with a 4 hour minimum hold and I have only been getting faint lines the last 2 days and completely blank prior to that. But I just started getting ovulation pain. So can you miss the LH surge? I'm CD 14 and have a 30 day cycle normally so chances are I am, but I'm confused. I think I usually ovulate CD 17 going off symptoms. We were trying to swaying for a girl so that has gone out the window if I am